Add spec_url for attributes in <track> element (#22734)

Author: skyclouds2001

html/elements/track.json

@@ -45,6 +45,7 @@
         },
         "default": {
           "__compat": {
+            "spec_url": "https://html.spec.whatwg.org/multipage/media.html#attr-track-default",
             "support": {
               "chrome": {
                 "version_added": "23"
@@ -83,6 +84,7 @@
         },
         "kind": {
           "__compat": {
+            "spec_url": "https://html.spec.whatwg.org/multipage/media.html#attr-track-kind",
             "support": {
               "chrome": {
                 "version_added": "23"
@@ -155,6 +157,7 @@
         },
         "label": {
           "__compat": {
+            "spec_url": "https://html.spec.whatwg.org/multipage/media.html#attr-track-label",
             "support": {
               "chrome": {
                 "version_added": "23"
@@ -191,6 +194,7 @@
         },
         "src": {
           "__compat": {
+            "spec_url": "https://html.spec.whatwg.org/multipage/media.html#attr-track-src",
             "support": {
               "chrome": {
                 "version_added": "23"
@@ -263,6 +267,7 @@
         },
         "srclang": {
           "__compat": {
+            "spec_url": "https://html.spec.whatwg.org/multipage/media.html#attr-track-srclang",
             "support": {
               "chrome": {
                 "version_added": "23"